Geology

Rocks and Their Origins

A Monograph of the Trilobites of North America: with Coloured Models of the Species

Industrial Minerals and Metals of Illinois

Geology and Inhabitants of the Ancient World

The Principles of Stratigraphical Geology

Theoretical method to increase the speed of continuous mapping in a three-dimensional laser scanning system using servomotors control

Illogical Geology, the Weakest Point in the Evolution Theory

The Chain of Life in Geological Time

Volcanoes: What They are and What They Teach

The Rother Valley

Guide to the Geologic Map of Illinois

Climate and Time in Their Geological Relations

Essay on the Theory of the Earth

The Geologic Setting of the John Day Country: Grant County, Oregon

The Geological History of Fossil Butte National Monument and Fossil Basin

The Atomic Fingerprint: Neutron Activation Analysis

The Romance of Modern Geology

My experiments with volcanoes

Thoughts on a Pebble, or, A First Lesson in Geology

Volcanoes